MSK103D-0300-NN-M2-UG2-RNNN Bosch Rexroth Indramat
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MPN: R911335881
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The Bosch Rexroth Indramat MSK103D-0300-NN-M2-UG2-RNNN is part of the MSK IndraDyn S Synchronous Motors series. This servomotor has a plain shaft, uses natural convection cooling, and features an IP65 protection rating. It includes an optical multiturn absolute encoder with EnDat2.1 interface and 2048 signal periods of resolution, along with an electrically-released holding brake rated at 60 Nm.
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Product Description:
The MSK103D-0300-NN-M2-UG2-RNNN is a synchronous servomotor produced by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. Classified as an IndraDyn S synchronous servomotor, it supplies controlled torque and position feedback for axes in packaging machines, machining centers, and material-handling cells. Its plain shaft and integral encoder allow direct coupling to precision gear stages or belt drives without additional sensors. When paired with a compatible drive, it supports closed-loop speed and position control for repeatable machine motion.
The motor has a size of 103 and is built in length D, which keeps mounting dimensions consistent. Winding code 0300 sets the electrical resistance and inductance used with compatible IndraDrive units. An electrically released holding brake delivers 60 Nm of static torque so vertical loads can be secured without external clamps. Protection class IP65 seals the housing against dust and low-pressure water jets, allowing installation on open machine frames. Position data come from an optical multi-turn absolute encoder that provides 2048 signal periods per revolution through an EnDat 2.1 serial interface. The increased concentricity design reduces radial runout, and the plain shaft geometry helps improve coupling life during repetitive indexing tasks.
Heat is removed by natural convection, eliminating the need for forced-air accessories in cabinets with limited airflow. Insulation built to Class 155 tolerates winding temperatures associated with continuous cyclic duty, while the motor can operate in ambient temperatures of 0–40 °C before derating. The feedback connector can be oriented through 240° of rotation, which simplifies cable routing inside tight enclosures and helps maintain minimum bend radii. The fixed D length keeps shaft extension and brake clearance consistent for surrounding machine components.
Frequently Asked Questions about MSK103D-0300-NN-M2-UG2-RNNN:
Q: What type of shaft is provided on the MSK103D-0300-NN-M2-UG2-RNNN?
A: This motor is built with a plain shaft configuration, making it suitable for applications with specific coupling needs.
Q: What is the holding brake torque for the MSK103D-0300-NN-M2-UG2-RNNN motor?
A: The holding brake on this model delivers a torque of 60 Nm and is electrically released.
Q: How is the MSK103D-0300-NN-M2-UG2-RNNN motor cooled?
A: This version of the motor features natural convection cooling, which operates without forced airflow or fans.
Q: What is the protection rating for the MSK103D-0300-NN-M2-UG2-RNNN motor?
A: The protection rating is IP65, indicating complete dust protection and resistance to low-pressure water jets.
Q: What type of encoder and resolution does the MSK103D-0300-NN-M2-UG2-RNNN use?
A: It uses an EnDat2.1 multiturn absolute optical encoder with a resolution of 2048 signal periods for precise feedback.
